should be it

external/duckdb/test/sql/select/test_positional_reference.test

@@ -0,0 +1,53 @@
+# name: test/sql/select/test_positional_reference.test
+# description: Positional reference
+# group: [select]
+
+statement ok
+PRAGMA enable_verification
+
+query I
+SELECT #1 FROM range(1)
+----
+0
+
+# multiple tables
+query I
+SELECT #1+#2 FROM range(1) tbl, range(1) tbl2
+----
+0
+
+# subqueries
+query I
+SELECT #1 FROM (SELECT * FROM range(1)) tbl
+----
+0
+
+# positional references only consider the inner-most table
+statement error
+select (select #1) from range(1);
+----
+<REGEX>:.*Binder Error.*out of range.*
+
+# out of range
+statement error
+SELECT #2 FROM range(1)
+----
+<REGEX>:.*Binder Error.*out of range.*
+
+# no from clause
+statement error
+SELECT #1
+----
+<REGEX>:.*Binder Error.*out of range.*
+
+# zero always fails
+statement error
+SELECT #0 FROM range(1)
+----
+<REGEX>:.*Parser Error.*Positional reference node needs.*
+
+# as do negative numbers
+statement error
+SELECT #-1 FROM range(1)
+----
+<REGEX>:.*Parser Error.*syntax error.*